- 1not sleeping; unable to sleep synonym sleepless He lay wakeful all night.
- 2(of a period at night) spent with little or no sleep synonym sleepless She had spent many wakeful nights worrying about him.
noun [uncountable] She began to drift between sleep and wakefulness. A sudden noise jolted him into wakefulness.See wakeful in the Oxford Advanced Learner's Dictionary
Check pronunciation: wakeful